Malicious PDF — malware analysis report

Static analysis result for SHA-256 5007791c80687115…

MALICIOUS

PDF

52.2 KB Created: 2020-08-21 14:58:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1642842add9f1384929c701e6d2f835 SHA-1: e4166401f47d8c511984303f3bfe9bcaf6b1c234 SHA-256: 5007791c80687115aa76ac2ed723eab3b7b0baee5b9b2074f3ab6565aa4752c1
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a high number of embedded links, many of which point to external resources. One critical heuristic identified a link to known malicious redirector infrastructure (ttraff.cc). The document body, though heavily obfuscated, contains the URL that triggered this heuristic. The presence of numerous links, including one to a malicious redirector, strongly suggests a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=qasida+burda+full+pdf
    • http://pejibiz.lopatswimming.org/uploads/1/3/0/8/130814124/1b1c796d653c6b.pdf
    • https://cdn.shopify.com/s/files/1/0434/6390/1334/files/twitch_shoutout_command.pdf
    • https://cdn.shopify.com/s/files/1/0435/1816/5146/files/xuxevefidakinimazavi.pdf
    • https://cdn.shopify.com/s/files/1/0447/7508/0087/files/vizot.pdf
    • https://cdn.shopify.com/s/files/1/0431/8553/7175/files/saserezuxetix.pdf
    • https://cdn.shopify.com/s/files/1/0454/5937/4230/files/bleach_opening_5.pdf
    • https://cdn.shopify.com/s/files/1/0433/0812/2280/files/8664808998.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0314/files/vevalufupipovena.pdf
    • https://cdn.shopify.com/s/files/1/0431/3051/9709/files/36092408392.pdf
    • https://cdn.shopify.com/s/files/1/0440/6516/1366/files/andreas_moritz_livre.pdf
    • https://cdn.shopify.com/s/files/1/0431/8606/1473/files/ctet_syllabus_for_science.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/wododasirodema.pdf
    • https://cdn.shopify.com/s/files/1/0433/4403/5993/files/kanutobi.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077a0.bin
88e99dfda65bb07e08c8e8caafbd6c57b21e5451e8c8654fabf1d56c76a8ad8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77A0 5236 bytes
font_01_sfnt_off0000896a.bin
0144de72852a1c79ad7f0ebe7c57271caa4bf70a634f98102f017323a20751ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x896A 9944 bytes
font_02_sfnt_off0000aa1a.bin
065d57a1000d3672c749218a3f1182980b4f2c0fb15528076ceb6837cf2ed053		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA1A 17300 bytes

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